baber/WOPTO huggingface dataset:
Patent GB-1317010-A (GB)
Title: Hydrodealkylation reactor
IPC: C07C4/16
Filed: 1970-07-30
Abstract: 1317010 Controlling hydrodealkylation reactor HYDROCARBON RESEARCH Inc 30 July 1970 [10 Oct 1969] 35199/72 Heading B1X [Also in Division C5] In the hydrodealkylation reactor described in Specification 1317009 (see heading B1F), Fig. 1, a hydrogen quench unit 42 consists of a group of tubes 43, each of which opens into a different annular quench distributor 45, Fig. 6, the distributors 45 being staggered along the length of the reactor. Distribution of hydrogen to each tube 43 is controlled by valves 52, Fig. 10, each valve being separately controlled by a thermocouple device 62 in a thermocouple assembly 60. Recycled cooled product can be introduced through conduit 32 to quench reaction medium leaving at 30.
Patent GB-797769-A (GB)
Title: Improvements in nozzles
Inventor: DAY MONTAGUE
IPC: F16L37/48
Filed: 1955-12-08
Abstract: 797,769. Nozzles. TECNIPLAST, Ltd. Nov. 14, 1956 [Dec. 8, 1955], No. 35273/55. Class 69 (3). A flexible tubular nozzle 1 has an interned wall 3 for gripping a tap, and ribs 4 which produce a smooth jet at the outlet 5.
Patent GB-972853-A (GB)
Title: Methods of making semi conductor bodies and apparatus suitable for carrying out such methods
IPC: H01L21/00
Filed: 1960-10-18
Abstract: 972,853. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. Oct. 18, 1960 [Oct. 28, 1959], No. 35662/60. Heading H1K. A method of making a semi-conductor device includes the steps of heating a semi-conductor body containing an impurity characteristic of a certain conductivity type in a flow of impurity free gas to out-diffuse the impurity, and subsequently cooling the body while still in the gas flow. In one example, a junction body is first prepared by diffusing antimony into the surface of a P-type germanium body. This step is performed in the apparatus shown in Fig. 1 as follows. After purging the furnace assembly 12, 13 with nitrogen, hydrogen which burns off at 16 is flowed through the furnace from 15. Work boat 21 bearing the germanium bodies is then driven through the hydrogen flame into section 14 of the furnace by the variable speed mechanical drive arrangements illustrated. The driving speed is next reduced so that the boat spends 15 minutes in section 14 and a further 18 minutes in reaching the part of the furnace maintained at 650‹ C. Antimony source 17 is now moved by magnetic means 19 into a part 12 of the furnace maintained at 490‹ C. and held there for 10-60 minutes during which antimony vapour carried by the hydrogen diffuses into the bodies to form a sub-surface PN junction. After removal of the bodies from the furnace as slowly as they were introduced they are introduced into a second clean furnace which, apart from the antimony source, is identical with that of Fig. 1. The bodies are introduced into the 650‹ C. zone precisely as before, held there for 200-360 minutes and then slowly withdrawn. During this heating the antimony diffuses both outwards and inwards to move the PN junction to a greater depth and lower the concentration of antimony in the surface region. The variation of antimony concentration with depth after the first and second stages is shown in Fig. 6. In making a transistor the main body is used as collector, the diffused region as base, and acceptor material is alloyed to the diffused zone to produce an emitter zone. The resulting emitter junction has a much higher reverse breakdown voltage than that produced by a comparable method in which the out-diffusion step is omitted. In an alternative method the collector PN junction is formed during the crystal growth process so that the in-diffusion step is omitted. A fail-safe system for cutting off the hydrogen supply and flushing with nitrogen in the event of failure of various parts of the gas supply systems is described in detail (Figs. 2, 3 and 4, not shown).
Patent GB-1146690-A (GB)
Title: Improvements in frames for structures such as windows, doors and articles of furniture
IPC: E06B3/968
Filed: 1965-08-20
Abstract: 1,146,690. Furniture joints. J. G. HOLMES. 16 Nov., 1966 [20 Aug., 1965], No. 35728/65. Heading A4H. [Also in Division E1] A frame for a window comprises tubular members e.g. 17, 18, 20, 21, 26 of synthetic resin connected together by junction members, e.g. 19, 22, 32 (which may be synthetic resin) having limbs to be secured in the end portions of the tubular members and completely enclosed therein. The limbs are a close fit in the tubular members and are secured therein by means of cement or a solvent for the synthetic resin.
Patent GB-305017-A (GB)
Title: Improved arrangement for the lubrication of the valve gear of internal combustion engines of the radial type
IPC: F01M9/10
Filed: 1928-12-04
Abstract: 305,017. Barbarou, M. J. B. Jan. 28, 1928, [Convention date]. Channels in internal-combustion engine parts.-In valve gear for radial internal-combustion engines comprising members 13, 14 mounted by roller bearings 12 on members 5, 6 keyed to the crankshaft 1, rings 9, 10 secured in the members 13, 14 and bearing on the members 5, 6 are provided with one or more internal grooves 11 whereby lubricant supplied from the crankshaft through ducts 2,3, a closed groove 4 on the crankshaft, and ducts 7, 8 in the members 5, 6 passes intermittently to the bearings 12.
Patent GB-825450-A (GB)
Title: Fountain pen construction and ink cartridge therefor
IPC: B43K5/14
Filed: 1955-12-13
Abstract: 825,450. Reservoir pens. WATERMAN PEN CO. Inc. Dec. 13, 1955 [Dec. 16, 1954], No. 35798/55. Class 146(3) An ink cartridge 15 has a bore 17 closed at its inner end by a diaphragm 18. The forward end of the cartridge is a sliding fit in a bore 11 of a cupling member 4 which secures the barrel 1 and nib section 2 together by means of a thread 6. The bore 17 fits tightly around a piercing tube 10, such that by screwing the barrel on to the member 4 the bore 17 slides over the tube 10 causing the sharpened inner edge 25 of the tube to penetrate the diaphragm 18 to form a hinged flap 27 to permit the flow of ink to the nib 3. A spring 20 presses a conical portion 16 on the cartridge into engagement with a seat 9, thus forming an ink seal; the angle of conicity of the seat 9 is preferably greater than the portion 16. Upon exhaustion of ink, the cartridge may be withdrawn to permit replacement, or some ink may be drawn into the cartridge by laterally squeezing and then releasing the cartridge walls which are preferably of polyethylene.
Patent GB-1021885-A (GB)
Title: Photo-conductive sheets and methods of making them
IPC: G03G9/06
Filed: 1962-09-20
Abstract: 1,021,885. Electro-photographic processes. MINNESOTA & MINING MANUFACTURING CO. Sept. 20, 1962 [Sept. 22, 1961], No. 35889/62. Heading G2H. [Also in Division H1] An electro-photographic material suitable for electrolytic development has over the photo-conductive layer, though not necessarily in direct contact therewith, a continuous, glossy, transparent, cohesive, and water-permeable layer containing a film-forming silica, this layer being substantially free of alkali-metal ions. The silica-containing layer is intended to improve the contrast of the developed image and is stated to be more suitable for this purpose than layers of polyvinyl alcohol, polyvinyl pyrolidone, dimethyl hydantoin formaldehyde, or gelatin. A layer containing a developer material may be provided between the photoconductive layer and the silica-containing layer or developer materials, such as electrolytically-reducible dyes or salts of zinc and silver, may be included in the silica containing layer. A wide variety of other materials may be added to the silica containing layer including inorganic materials, filter dyes, and other organic materials. In the embodiments given, however, silica-containing films are coated directly on to photoconductive layers. Three developers are given for such materials. One consists of an aqueous solution of specified quantities of silver nitrate, ethylene thiourea, magnesium acetate, and acetic acid. Cathodic development is used, the current being passed intermittently to avoid polarisation troubles. A second developer consists of an aqueous solution of silver nitrate and magnesium nitrate. Again intermittent development is used. The third developer is an aqueous solution of nickel chloride, ammonium chloride, and ammonia (pH 6. 5). It is suggested that with silver developers the surface may be treated with known photographic sensitizers such as quatenary ammonium halides, saccharine, and ethylene thiourea.
Patent GB-343591-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/22
Filed: 1929-11-23
Abstract: 343,591. Fluid-pressure brakes. LOCKHEED HYDRAULIC BRAKE CO., Ltd. and RODWAY, J., Clemens Street, Leamington Spa. Nov. 23, 1929, No. 35964. [Class 103 (i).] A fluid-pressure brake comprises a cylinder 14 arranged within the width of a brake drum and accommodated in a recess 13 in the back plate 12 or a member associated with the back plate so that the cylinder is shielded from the parts of the brake liable to become heated. The cylinder 14 is fixed to a flange of the axle casing by studs 16 which also support a plate 20. having diverted portions forming baffles 19 which direct air around the cylinder. The piston rods 14a extend through end walls of the recess 13 to engage the brake shoes 15. An air space 21 may be provided between the cylinder and the recess on this space may be packed with asbestos. The recess may be formed by attaching a separate pocket to the inner side of the back plate in which holes are formed for access of cool air, or to the outer side, the pocket projecting through an aperture inwardly. In a modification adapted for front wheel brakes, the back plate is recessed to accommodate the stub axle also and a flanged plate bolted to the back plate surrounds and also supports the cylinder. The baffles 19 are formed by diverted extensions of the flanged plate.
Patent GB-1534804-A (GB)
Title: Electrical circuit breaker
IPC: H01H71/12
Filed: 1977-08-26
Abstract: 1534804 Automatic circuit breakers CUTLER HAMMER WORLD TRADE Inc 26 Aug 1977  [15 Sept 1976] 35990/77 Heading H1N A single or multipole automatic circuit breaker comprises a pivoted contact arm 8, 8a engageable with a fixed contact 6a of a terminal 6 by a pivoted handle 38 and toggle linkage 28, 32 having a latch 66a which is tripped on overload by alternative thermal and electromagnetic means comprising an electromagnet 76, bimetal member 14 and an armature member 80 mounted on the other terminal 15 with an electrical connection between the pivoted contact arm 8 and the bimetal member 14 to provide a current path. The electromagnet 76 is of U- section and partly surrounds the bimetal member 14 which provides the magnetizing field resulting in the attraction of the armature 80. Co-operating contacts (12a), (80b) Fig. 2 (not shown) on the bimetal and armature operate to shunt the current through the bimetal to protect it against over-heating when the armature 80 operates. On overload, either the bimetal 14 or armature 80 strikes trip lever 72 to rotate it about pin 74 to release tab 72b holding spring return latch 66 whereby latch lever 22 holding the toggles 28, 32 is released by latch 66a. A manual test means for tripping the breaker is provided by a rotary member 86 operated by a screw driver to cam the head 70 of trip lever 72.
Patent GB-320810-A (GB)
Title: Improvements in or relating to piano frames
IPC: G10C3/04
Filed: 1928-12-06
Abstract: 320,810. Booth, P. M., Parnell, H., and Brasted Bros., Ltd. Dec. 6, 1928. Pianofortes, framing and bridges for.-To avoid cutting the treble bridge and dividing the action in an overstrung piano, the tenor bar on the frame is omitted, and an extra bar 20 parallel to and between the hitch-plates 7, 17 is formed integral with or attached to the frame, preferably passing over the bass strings 6. The inner edge 21 of the plank-plate 1 extends in a curve from the junction of the cross-bars 11, 12 to the treblebar 9.
Patent GB-1387962-A (GB)
Title: Coke ovens
IPC: C10B27/04
Filed: 1973-07-30
Abstract: 1387962 Removing dust &c. generated in industrial processes SIMON-CARVES Ltd 30 July 1973 [4 Aug 1972] 36113/73 Heading F4X In a method of operating a coke oven battery of the kind having two suction ducts 17, 18 to which each oven chamber can be selectively connected each oven chamber is connected to suction duct 17 during charging and to suction duct 18 during the remainder of a carbonizing period, the suction in duct 17 being greater than that in duct 18. The duct 18 is connected through a suction line 19 to a plant for cooling gases collected during the carbonizing period and recovering by-products therefrom. The duct 17 is connected by line 20 to a gas scrubber 21 wherein dust and tar constituents are precipitated by application of a suitable washing fluid such as water. Charging gas cleaned in the scrubber 21 can either be discharged to atmosphere via an exhauster 22 or it can be added to the gases issuing from the duct 18 via an exhauster 26. Water withdrawn from the separator 23 at 25 can be recycled to the scrubber 21 for further use therein; tar deposits are discharged at 24. Each oven chamber is selectively connected to one of the two ducts 17, 18 via a vertical pipe 15 and an elbow 16. Charge holes 12 for coal fed from hoppers are provided in the oven roof 11. In addition an inclined opening 13 is provided through which preheated coal conveyed by a current of inert gas can be charged.
Patent GB-155831-A (GB)
Title: Improvements in or relating to high tension electric transformers
IPC: H01F38/18
Filed: 1920-12-23
Abstract: 155,831. Veifa - Werke Vereinigte Elektrotechnische Institute Frankfurt-Aschaffenburg, and Dessauer, F. Oct. 7, 1915, [Convention date]. Addition to 155,830. Transformers. - In a modification of the arrangement for reducing the potential difference between the windings of a high-tension transformer described in the parent Specification, the primary windings l, m are connected to intermediate points 1, 2 of the secondary windings p, q. In a further modification, the windings l, m are adjustably connected to resistances connecting the points 1, 2 to a low-potential conductor. The Specification as open to inspection under Sect. 91 (3) (a) states also that the potential impressed on the windings l, m may be obtained from a separate source of current instead of from the high-tension windings p, q. This subjectmatter does not appear in the Specification as accepted
Patent GB-513152-A (GB)
Title: Improved manufacture of chromates
IPC: F16L13/12
Filed: 1937-12-30
Abstract: 513,152. Sodium chromate and bichromate. UDY, M. J. Dec. 30, 1937, No. 36142. Convention date, Nov. 30. [Class 1 (iii)] Finely divided chromium metal alloy intimately admixed with lime and with sufficient soda ash to convert about one half of the chromium to sodium chromate is roasted say at 800‹C., and the product leached with water to obtain a solution of sodium and calcium chromates, which may be acidified with sulphuric acid to convert the chromates to sodium bichromate. The alloy may be ferrochrome of high or low iron content, a high carbon content rendering the alloy easily ground.
Patent GB-1017674-A (GB)
Title: Coated pharmaceutical compositions
IPC: A61K9/28
Filed: 1964-09-04
Abstract: A coated pharmaceutical composition comprises (1) a nucleus containing a drug and adjuvants, coated in sequence with (2) a layer of an acid-soluble coating material which is resistant both to alkalis and intestinal juices, (3) a layer of a hydrophilic substance and (4) a layer of an alkali-soluble coating material which is resistant to acid and to gastric juices.  Specified drugs are emetine, dehydro-emetine, their hydrochlorides and complexes with bismuth iodide, antimony potassium tartrate, acetylsalicylic acid, sodium or calcium acetylsalicylate, sodium salicylate, p-amino-salicylic acid or sodium or calcium p-amino salicylate. Specified acid-soluble coating materials are basic amino-containing polyelectrolytes e.g. amino-containing polyacrylates or methacrylates (especially polymers of aminoalkyl esters of acrylic or methacrylic acids), amino-containing polysaccharides (especially benzylamino-methyl cellulose, acetyl cellulose-p-amino-benzoate, cellulose acetate diethyl aminoacetate), amino-containing sugar derivatives (especially sucrose p-amino-benzoate, mannibol p-amino-benzoate and dodecyl amine N-lactoside), and polyvinyl derivatives having basic amino groups (especially polyvinyl pyridine, polyvinyl piperidyl) acetacetal, co-polymers of vinyl pyridine and styrene, and vinyl-diethylamino/vinyl acetate copolymers).  Specified alkali-soluble coating materials are film-forming polyelectrolytes containing carboxyl groups e.g. natural lacquers especially keratin, shellac; cellulose esters containing carboxyl groups (especially acetyl-phthalyl cellulose, acetyl-succinyl cellulose), carboxyl-containing copolymers containing mallic acid or anhydride as acidic component especially co-polymers of styrene and maleic anhydride, styrene/acrylic acid and the butyl partial ester of maleic acid, maleic anhydride and vinyl methyl ether) and carboxyl-containing co-polymers with acrylic or methacrylic acid as acidic component (especially copolymers of styrene and methacrylic acid).  The hydrophilic substance may consist of sugar syrups (with or without mucilages) or solutions of solid polyethyleneglycols, and it may also be used to form an external sealing layer, optionally with colouring materials.  The porosity of the coating layers can be reduced by incorporating therein solid materials e.g. talc, pigments, calcium stearate or magnesium stearate.  The diffusion of the active drug through the alkali-resistant layer can be regulated by incorporating into the nucleus water-insoluble and/or alkali-insoluble materials as well as slowly- or non-digestible inert substances e.g. barium sulphate, Ca3Po4, CaCo3, high melting waxes, zein, or hydrogenated castor oil.  Multiple layers of either one or both types of alkali- and acid-soluble coating materials may be used, the intermediate hydrophilic layer separating successive layers. Medicaments, which may be the same or different from those present in the nucleus, may be incorporated in the intermediate hydrophilic layers.
Patent GB-912935-A (GB)
Title: Improvements relating to sealable containers
IPC: B65D55/02
Filed: 1958-11-14
Abstract: 912,935. Tapping containers; stoppers. PRATOLONGO, M., and KEAN, C. Nov. 14, 1958, No.36662/58. Classes 21 and 125(3). A container for liquids has an outlet closed by a stopper 8 that is withdrawable inwardly of the container by a metal drawcord 5. The cord 5 passes through a rupturable metal membrane 3, to which it is soldered, and terminates in a ring housed in a recess 17. The recess 17 is closed by a tab 1 that can be removed, by a coiling key 18, to permit the ring 2 to be pulled to cause the cord 5 to form a small but readily visible aperture in the membrane 3. The membrane 3 is at one end of a compartment 16 coated with a compound that changes colour when in contact with the liquid which the container is intended to contain, thus preventing the container from being readily refilled without detection. Specification 912,933 is referred to.
Patent GB-1075338-A (GB)
Title: Improvements relating to waveband switching arrangements
IPC: H04N5/44
Filed: 1964-09-08
Abstract: 1,075,338. Television tuners. TELEFUNKEN PATENT VERWERTUNGS G.m.b.H. Sept. 8, 1964 [Sept. 18, 1963], No. 36685/64. Heading H3Q. A waveband switching arrangement comprises a screening enclosure divided by a partition into two compartments, the one containing a tuning condenser and a first inductance and the other a second inductance, switch means being provided on the partition which in one position earths one end of the first inductance and in the other connects the two inductances in series to earth. A television tuner comprises a screening box 1 divided by partition 2, one part being subdivided into compartments 4, 5, 6, 7 by further partitions 3: compartments 4, 5, 6 form part of U.H.F. resonant line circuits while compartment 7 contains aperiodic input circuit components for this band. Rotatable shaft 8 carries the moving plates 9 of a multiple gang tuning condenser of which the fixed plates 10 are attached to trimmer condensers 11 and also to lengths of line 13 which are printed on an insulating support 12, to form with the enclosures capacitively tuned quarter wavelength resonant line circuits. The end of each line adjacent partition 2 is extended to act as one contact 14 of a waveband switch, the other contacts 15 of which are supported by a strip of insulating material 16 attached to the partition 2. A slidable member 17 of insulating material carries spring contacts 18 whereby each contact 14 can be connected to either of two alternative contacts 15, the one soldered directly to partition 2 and the other by lead 19 to the V.H.F. circuits. The slidable member 17 also carries a further contact 20, e.g. for shortcircuiting in V.H.F. operation a coupling capacitor only used on U.H.F. V.H.F. components are mounted on an insulating plate 21 which may carry printed wiring and components; this plate is mounted, as is also the plate 12, in the box 1 by soldering to conducting strips printed for this purpose on the edges of the plates. Two sets of V.H.F. coils, i.e. for Bands I and III respectively, are mounted on the insulating plate 21, switching being performed by means of a further sliding switch comprising a strip 25 of insulating material carrying spring contacts 24 which engage fixed knife edge contacts 23 inserted in plate 21. The box is also divided by partitions 26, 27 into a compartment 28 for an I.F. filter and compartment 29 for a monitoring point. The arrangement comprises R.F. amplifying and mixer/ oscillator transistors 22; the switch 25 may in addition change over the function of certain transistors, e.g. the self-oscillating mixer may be used solely as oscillator on V.H.F. and the first I.F. amplifier transistor may then be used as mixer.